How does a new hypothesis replace an order exclamation of something in the natural world

The vapor pressure of pure water at 30°C is 40 torr. If NaCl is dissolved into a sample of water until the total vapor pressure of the mixture at 30°C is 32 torr, what is the mole fraction of NaCl?

Name the following chemical compound. p2o5 a. diphosphorus pentoxide b. diphosphorous tetraoxide c. phosphorous (ii) tetraoxide d. phosphorous (v) pentoxide

What is sodium phosphate and cobalt (II) bromide

1. a.) Calculate the wavelength of light which has a frequency of 5.25 x 10 14 Hz. b.) Express in nm.

What is the name of CO2

You start with 100 grams of zinc how many moles of hydrogen will be produced

What will an atom do if it has 1 to 3 valence electrons

What is milk best described as? solution, suspension, compound, or colloid?

In any chemical reaction, the quantities that are conserved are ... A. mass and moles. B. the number of molecules and the volumes. C. the number of moles and the volumes. D. mass and number of atoms.

How many neutrons does element X have if its atomic number is 39 and its mass number is 75?